OK, I'm Addicted... 36 and counting... There are very few TD games that I don't buy...usually ones that are only endless or have serious issues (though I own some of those too...).
Once upon a time I was a big TD fan, and had alot on my iPod Touch. Then I did a spring clean, and I found myself deleting all of them, except for Star Defense. Don't know why, Just impulse. Must mean something. The only one I hovered for a while over was The Creeps, but in the end that one went too...
I have... Star Defense, Defender Chronicles, Geo Defense, Field Runners, The Creeps! and Tower Madness. The "Castle Defense" Games I have are Cartoon-Wars, Defend Your Castle, and Knights Onrush
All I have is Tap Defense, and I really don't like it. I'm hoping to get a better TD game, but I'm out of money. I hope that Star Defense will go free soon (possible) or Tower Madness has a free giveaway again. I missed it last time.
Fieldrunners The Creeps Defender Chronicles Besiegement Sentinel 1: Earth Defense Sentinel 2: Mars Defense Elemental Monster TD (current name Monster Defence) Star Defense 7 Cities Tower Madness GeoDefense and of course Tap Defense (sentimental value. started with this one) I guess you can say I'm trying to collect all the well recieved TDs available. Love this genre. Can't pass a day without having my TD fix.
Geodefense tapdefense defender chronicles sentinel 2: earth defense 7 cities star defense defender chronicles the creeps